SU564857A1 - Chamber for vital microscopy - Google Patents

Description

one

The invention relates to medical technology, in particular to chambers for vital microscopy.

A known vital microscopy chamber consisting of two movably connected transparent portholes 1. However, the known device does not allow blood pressure to be measured in the observed microvessels without disturbing the microcirculation.

The aim of the invention is to measure the blood pressure in the observed microvessels without disturbing the microcirculation. In the chamber described, this is achieved by the fact that it contains a transparent elastic membrane fixed on the inside of one of the windows, a gas injection device with a pressure recorder connected to the space under the membrane, and a charge air temperature regulation system.

FIG. 1 depicts the described camera, a general view; in fig. 2 is a block diagram of a chamber and devices for measuring blood pressure.

The chamber contains two movably mounted transparent portholes 1 and 2, a transparent elastic membrane 3 fixed on the inner side of the porthole 1, a gas injection device 4 with a pressure recorder 5 connected to the space under the membrane 3, and a system for thermostatting forced air.

To measure blood pressure in the observed microvessels into space

between the membrane 3 and the porthole 1, the device 4, through the fitting 7, injects air until the expansion membrane presses the lumen of the vessel observed through the microscope. The readings of the pressure recorder 5 at the moment when the microvessel is compressed and will correspond to the intravascular pressure. To prevent microcirculation disorders and distort the results due to temperature changes.

the observed area of tissue caused by the injection of cold air, the transistor thermal sensor 8 records the temperature of the tissue section of the prisoner into the lumen of the chamber, the readings of which are fed to the thermostat 9.

Block 10 contains a thermoelement. for heating the air and the second thermal sensor and maintains the temperature of the injected air in exact accordance with the readings of the thermal sensor 8.

The use of spring restraints II

allows arbitrarily adjusting clearance

the slit-like space between the portholes and, thus, an additional squeezing of micro-sediments, which is unavoidable if the thickness of the iodo-fatty tissue and the slit-like space in the known chambers with rigid fixation of the illuminators do not match

The described chamber allows observing the morphological features of microcirculation and simultaneously recording the blood pressure in the observed microvessels without disturbing the microcirculation, and the pressure can be recorded repeatedly during the whole period of operation of the transparent chamber.

Claims (1)

Invention Formula A vital microscopy chamber containing two movable transparent portholes, characterized in that, in order to measure blood pressure in the observed microvessels without disturbing the microcirculation, it contains a transparent elastic membrane fixed on the inner side of one of the illuminators, a gas injection device with a pressure recorder connected to the space by an iodine membrane and a thermal control system of forced air. The source of information taken into account during the examination 1. V. Barkovsky. Technique of implanting a transparent camera into the skin fold of the back near the mouse. Archive of anatomy, leafology and embryology, 1975, 2. p. 103-106. :